What to do in between having a product and having a good product

“Won’t I have to lie about how good my product is in order to get people to sign up and try it and give me the feedback I need to improve it?”
This is the longest hardest part of the entrepreneurial journey and it’s where most people get stuck — they have a great idea, but know it can’t help people as much as they want it to yet, and very little traction to speak of.